EP3110651A1 - Steuereinrichtung und verfahren zur antriebsschlupfregelung für ein elektrisches antriebssystem - Google Patents
Steuereinrichtung und verfahren zur antriebsschlupfregelung für ein elektrisches antriebssystemInfo
- Publication number
- EP3110651A1 EP3110651A1 EP14821177.4A EP14821177A EP3110651A1 EP 3110651 A1 EP3110651 A1 EP 3110651A1 EP 14821177 A EP14821177 A EP 14821177A EP 3110651 A1 EP3110651 A1 EP 3110651A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- current
- vehicle
- speed
- wheels
- voltage converter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- 230000008859 change Effects 0.000 claims abstract description 21
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- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 210000000352 storage cell Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/10—Indicating wheel slip ; Correction of wheel slip
- B60L3/106—Indicating wheel slip ; Correction of wheel slip for maintaining or recovering the adhesion of the drive wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2036—Electric differentials, e.g. for supporting steering vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/10—Indicating wheel slip ; Correction of wheel slip
- B60L3/102—Indicating wheel slip ; Correction of wheel slip of individual wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/10—Indicating wheel slip ; Correction of wheel slip
- B60L3/104—Indicating wheel slip ; Correction of wheel slip by indirect measurement of vehicle speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/10—Indicating wheel slip ; Correction of wheel slip
- B60L3/106—Indicating wheel slip ; Correction of wheel slip for maintaining or recovering the adhesion of the drive wheels
- B60L3/108—Indicating wheel slip ; Correction of wheel slip for maintaining or recovering the adhesion of the drive wheels whilst braking, i.e. ABS
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/12—Recording operating variables ; Monitoring of operating variables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/10—Electrical machine types
- B60L2220/12—Induction machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/10—Electrical machine types
- B60L2220/14—Synchronous machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/10—Electrical machine types
- B60L2220/18—Reluctance machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/10—Vehicle control parameters
- B60L2240/12—Speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/421—Speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/423—Torque
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/46—Drive Train control parameters related to wheels
- B60L2240/461—Speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/52—Drive Train control parameters related to converters
- B60L2240/527—Voltage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/52—Drive Train control parameters related to converters
- B60L2240/529—Current
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2250/00—Driver interactions
- B60L2250/26—Driver interactions by pedal actuation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2260/00—Operating Modes
- B60L2260/40—Control modes
- B60L2260/42—Control modes by adaptive correction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Definitions
- the invention relates to a control device and a method for
- ABS anti-lock braking systems
- ESP Stability Programs
- TCS Traction Control Systems
- Traction control systems require a large number of sensors whose measured values directly or indirectly suggest the slip between the ground and the vehicle wheel.
- Typical sensors are steering angle sensors, yaw rate sensors,
- the present invention therefore provides, in one aspect, a controller for a n-phase electric machine, n> 1, feeding an electrically powered vehicle voltage converter, having an observer unit configured to maintain a current speed of the electric machine and a current output current of the electric machine Voltage transformer to determine a calculation unit, which with the
- Observer unit is coupled, and which is adapted to calculate in dependence on the determined current speed, a current wheel speed of the wheels of the vehicle, and a slip control unit, which with the Calculation unit is coupled, and which is adapted to the output current of the voltage converter at least temporarily with a current correction amount
- the present invention according to another aspect provides an electrical
- Control device which is coupled to the electric machine and the voltage converter, and which is adapted to a
- the present invention according to another aspect provides an electrical
- the present invention provides according to another aspect of a method for traction control in an electric drive system for an electrically powered vehicle, which has a n-phase electric machine, n> 1, feeding voltage converter of an electrically operated vehicle.
- the method includes the steps of determining a current speed of the electric machine and a current output current of the voltage converter, calculating a current wheel speed of the wheels of the vehicle in dependence on the determined current speed, and at least temporarily biasing the output current of the voltage converter with a Amount of current correction when the instantaneous change in the wheel speed of the wheels exceeds a first predetermined threshold.
- One idea of the present invention is to provide a traction control system in an electrically powered vehicle such as an electric car or a vehicle
- Target torque via an adjustment of the output current of the voltage converter of electric drive system is to be reduced.
- a significant advantage of this approach is that no additional sensors such as steering angle sensors, yaw rate sensors, acceleration sensors, and wheel speed sensors need to be implemented in the electric drive system or vehicle, so the implementation cost of the
- Traction control can be kept low.
- the invention can be used in vehicles with electric drive, such as
- Front-wheel drive, rear-wheel drive or all-wheel drive can be used.
- Electrically powered vehicles according to the invention can vehicles with one or more
- Be electric motors which may optionally also have combustion engines.
- the calculation unit may be configured to determine a current value from the determined current output current
- control device the
- control device the
- the slip control unit is further configured to control the output flow of the
- the method may further comprise the steps of calculating a current vehicle speed of the vehicle from the determined current output current, comparing the calculated current vehicle speed of the vehicle with the wheel speed of the wheels of the vehicle depending on the determined current speed, and the at least temporary one Including the output current of the voltage converter with a current correction amount include when the wheel speed of the wheels deviates from the calculated current vehicle speed of the vehicle by more than a second predetermined threshold.
- calculating the current vehicle speed of the vehicle may include calculating a current drive torque from the determined current output flow, adjusting the calculated current drive torque by a current driving resistance
- Calculating a driving torque applied to the wheels and comprising calculating the current vehicle speed of the vehicle via the adjusted torque applied to the wheels.
- the method may further include the step of at least temporarily biasing the output current of the
- Fig. 1 is a schematic representation of an electric drive system for an electrically powered vehicle according to an embodiment of the present invention
- Fig. 2 is a schematic representation of a control device for
- Fig. 3 is a schematic representation of a method for
- FIG. 1 shows an electric drive system 1 with a driver-desired sensor 9, a vehicle control unit 2, a voltage converter 3 and an electric machine 4.
- the feeding of multiphase current into the electric machine 4 is accomplished by a voltage converter 3, for example in the form of a pulse-controlled inverter.
- a voltage converter 3 for example in the form of a pulse-controlled inverter.
- the voltage converter 3 is used to convert DC or AC voltage provided by one or more energy storage devices (not shown) of the vehicle into an n-phase AC voltage. It may also be possible that the
- Energy storage devices of the vehicle are integrated into the voltage converter 3, for example in a battery direct converter (BDI).
- BDI battery direct converter
- the voltage converter 3 energy storage cell modules with series-connected batteries 5a to 5n,
- the coupling elements of the coupling devices can be controlled in such a way, for example by means of the control device 10, that the individual energy storage cell modules are selectively used to supply power to the electric machine 4.
- suitable control of the coupling devices can therefore individual
- Output voltage of the voltage converter 3 can be used.
- three phase lines are shown in FIG. 1, which are suitable for outputting a three-phase alternating voltage, for example for a three-phase three-phase machine 4.
- the electric machine 4 may comprise, for example, an asynchronous machine, a synchronous machine, a switched reluctance machine or a transverse flux machine.
- the electric drive system 1 further comprises a control device 10, which is connected to the voltage converter 3, and by means of which the voltage converter 3 can be controlled in order to provide the desired output voltages at the respective phase terminals of the electric machine 4.
- the driver of the vehicle informs the system of his driver's request F via the driver's desired sensor 9, for example an accelerator pedal or another input device.
- the driver's request F for example an acceleration, braking or holding the speed is converted by the vehicle control unit 2 in a corresponding requested torque Ms, with which the voltage converter 3 is driven, for example via a CAN bus as a desired signal.
- the voltage converter 3 in turn or the associated control device 10 sets the output voltage or the output current I am
- Transducer output that is, on the n phase lines, such that the electric machine 4 can deliver the desired target torque.
- the electric machine 4 moves the connected motor shaft at a speed n1, which can optionally be transformed via a gear 5 according to the ratio in a second speed n2.
- the connected differential 6 then distributes the torque via a wheel axle 8 to one or more wheels 7a, 7b.
- control device 10 may further a traction control of the electric
- FIG. 2 shows a schematic representation of a control device 10 which can be used, for example, in the electric drive system 1 of FIG. 1.
- the control device 10 comprises an observer unit 11, which is designed to have a current rotational speed nm of the electric machine 4 and a current one
- the current speed nm can for example be tapped directly on the electric machine 4 or on the motor shaft become.
- the current output current Im of the voltage converter 3 can be tapped, for example, via a current sensor 3a on the phase lines of the electric machine 4.
- the observer unit 11 is coupled to a calculation unit 12 and transmits the determined parameters nm and Im to the calculation unit 12. This in turn can be designed to be determined from the determined current
- the calculation unit 12 can calculate, for example, a current drive torque from the output current Im. By subtracting a speed-dependent travel resistance from the current drive torque, the calculation unit 12 calculates an adjusted drive torque which actually acts on the wheels 7a, 7b.
- the estimated or known vehicle weight makes it possible to deduce the adjusted drive torque for the acceleration of the vehicle.
- An integration over the current acceleration of the vehicle over a measuring period makes it possible to determine the vehicle speed.
- the observer unit 11 may furthermore have one or more input variables vm for improving the estimated
- the input variable vm may be, for example, a vehicle speed known to the GPS system of the vehicle or a similar external parameter.
- the calculation unit 12 can correspondingly input this input quantity vm when calculating the vehicle speed of the vehicle
- Vehicle speed may not fall below the wheel speed.
- the calculation unit 12 may finally calculate the calculated current
- Vehicle speed of the vehicle with the dependent of the determined current speed nm wheel speed of the wheels of the vehicle compare.
- the calculation unit 12 can use the comparison of vehicle speed and wheel speed to determine a time-dependent course of the slip of the wheels 7a, 7b determine. This course of the slip can be forwarded to a slip control unit 13, which is coupled to the calculation unit 12.
- the slip control unit 13 may be configured to control the output current I of the
- Vehicle speed calculation or determination is dependent, it may be advantageous to resort to a control mechanism that is not necessarily reliant on the vehicle speed calculation.
- the control mechanism that is not necessarily reliant on the vehicle speed calculation.
- Slip control unit 13 may be configured to at least temporarily apply a current correction amount to the output current I of the voltage converter 3 if the instantaneous change in the wheel speed of the wheels exceeds another predetermined threshold, that is, if the slip change is too fast. Finally, as an alternative or in addition, it is also possible to apply a current correction amount to the output current I of the voltage converter 3 at least temporarily by the slip-control unit 13, if the instantaneous change in the
- Vehicle speed of the vehicle deviates by more than a third predetermined threshold, that is, when there is too high wheel acceleration. In the latter case is not based on the absolute value of the calculated
- Vehicle speed resorted only to a relative change in the absolute value. As a result, possible deviations in the absolute values of the calculated current vehicle speed are not so significant.
- the slip control unit 13 outputs to an output current control signal Mc for the
- the current correction amount (different from zero) can in each case preferably be subtracted from the output current I of the voltage converter 3 in all control scenarios, so that the output current I of the voltage converter 3 is reduced by the current correction amount.
- the current correction amount may in principle assume any desired size, wherein the magnitude of the current correction amount may be dependent on a predetermined amount of the desired control effect of the traction slip control.
- modification of the output current I of the voltage converter 3 by the current correction amount may be fully or partially maintained for a predetermined period of time to maintain the engine speed during this time
- the traction control system implemented by the control device 10 can be activated for a short period of time in the range of a few seconds up to a generally unlimited long-term period of several minutes or even hours.
- Fig. 3 shows a schematic illustration of a method 20 for
- Traction control in an electric drive system for an electrically operated vehicle can be implemented in particular in an electric drive system 1 with a control device 10 according to FIGS. 1 and 2.
- a calculation of a current vehicle speed of the vehicle can also be calculated from the determined current output current Im and a comparison of the calculated current value
- the calculation in step 23a of the current vehicle speed of the vehicle may, for example, calculate a current drive torque from the determined current output current Im, purge the calculated current drive torque by a current drive resistance to calculate a drive torque applied to the wheels, and calculate the current vehicle speed of the vehicle via the adjusted applied to the wheels drive torque.
- the output current I of the voltage converter 3 may also be at least temporarily biased with a current correction amount if the instantaneous wheel speed change of the wheels exceeds a second predetermined threshold and / or if the instantaneous change in wheel speed of the wheels is due to the change in calculated current
- Vehicle speed of the vehicle deviates by more than a third predetermined threshold.
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Abstract
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DE102014203565.1A DE102014203565A1 (de) | 2014-02-27 | 2014-02-27 | Steuereinrichtung und Verfahren zur Antriebsschlupfregelung für ein elektrisches Antriebssystem |
PCT/EP2014/078962 WO2015128032A1 (de) | 2014-02-27 | 2014-12-22 | Steuereinrichtung und verfahren zur antriebsschlupfregelung für ein elektrisches antriebssystem |
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EP3110651A1 true EP3110651A1 (de) | 2017-01-04 |
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US (1) | US10322648B2 (de) |
EP (1) | EP3110651B1 (de) |
JP (1) | JP6272495B2 (de) |
KR (1) | KR102326629B1 (de) |
CN (1) | CN106029431B (de) |
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DE102014203565A1 (de) * | 2014-02-27 | 2015-08-27 | Robert Bosch Gmbh | Steuereinrichtung und Verfahren zur Antriebsschlupfregelung für ein elektrisches Antriebssystem |
DE102018209582A1 (de) * | 2018-06-14 | 2019-12-19 | Bombardier Transportation Gmbh | Verfahren zum Betreiben eines elektrisch angetriebenen Fahrzeugs und elektrisch angetriebenes Fahrzeug |
DE102019113772A1 (de) * | 2019-05-23 | 2020-11-26 | Kiepe Electric Gmbh | Verfahren zur Abschätzung eines Drehmoments mindestens eines elektrischen Antriebsmotors eines Fahrzeugs |
KR20210044917A (ko) | 2019-10-15 | 2021-04-26 | 현대자동차주식회사 | 4륜 구동 전기자동차의 트랙션 제어 장치 및 방법 |
CN112874320B (zh) * | 2021-02-22 | 2023-01-24 | 北京车和家信息技术有限公司 | 差速器主动保护控制方法、装置、设备和存储介质 |
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JPH04102U (de) * | 1990-04-11 | 1992-01-06 | ||
JPH08182118A (ja) * | 1994-12-22 | 1996-07-12 | Fuji Heavy Ind Ltd | 電気自動車の駆動制御装置 |
US7905813B2 (en) * | 1999-09-28 | 2011-03-15 | Borealis Technical Limited | Electronically controlled engine generator set |
JP3582521B2 (ja) | 2002-08-13 | 2004-10-27 | 日産自動車株式会社 | 4輪駆動車両の駆動力制御装置 |
US7337054B2 (en) * | 2004-07-29 | 2008-02-26 | Caterpillar Inc. | Systems and methods for controlling slip |
JP4371270B2 (ja) | 2005-03-31 | 2009-11-25 | 株式会社日立製作所 | 車両駆動力装置 |
JP2007326404A (ja) * | 2006-06-06 | 2007-12-20 | Hitachi Constr Mach Co Ltd | 電気駆動ダンプトラックの駆動システム |
CN103350700B (zh) * | 2009-01-08 | 2016-01-20 | 株式会社小松制作所 | 车辆速度推算装置及牵引控制装置 |
CN102171077B (zh) * | 2009-01-08 | 2013-10-16 | 株式会社小松制作所 | 牵引控制装置 |
US8503208B2 (en) * | 2009-01-29 | 2013-08-06 | Brusa Elektronik Ag | Converter for single-phase and three-phase operation, D.C. voltage supply and battery charger |
US20120279793A1 (en) * | 2010-01-22 | 2012-11-08 | Akira Kikuchi | Electrically driven vehicle |
JP5336447B2 (ja) * | 2010-09-02 | 2013-11-06 | 日立建機株式会社 | 電気駆動車両 |
CN102114782B (zh) * | 2010-11-29 | 2012-11-21 | 中国科学院深圳先进技术研究院 | 一种电动汽车的滑移率检测方法及检测系统 |
DE102010062646A1 (de) * | 2010-12-08 | 2012-06-14 | Robert Bosch Gmbh | Verfahren zur Drehzahlbestimmung und Antriebseinheit |
WO2012167316A1 (en) * | 2011-06-10 | 2012-12-13 | Axiflux Holdings Pty Ltd | Electric motor/generator |
JP5824406B2 (ja) * | 2012-04-20 | 2015-11-25 | 日立建機株式会社 | 電気駆動車両 |
US20140095002A1 (en) * | 2012-10-03 | 2014-04-03 | David Crecelius | Electric Hybrid Drive for Retrofitting to Internal Combustion Automobiles |
TWI628908B (zh) * | 2012-12-10 | 2018-07-01 | 澳大利亞商艾克西弗洛克斯控股私營有限公司 | 具有整合式差速器之電動馬達/發電機 |
WO2014121949A2 (de) | 2013-02-09 | 2014-08-14 | Lars Malindretos | Vorrichtung und verfahren zur konditionierung von umgebungsluft |
US9919340B2 (en) * | 2014-02-21 | 2018-03-20 | Regal Beloit America, Inc. | Method for making a component for use in an electric machine |
DE102014203565A1 (de) * | 2014-02-27 | 2015-08-27 | Robert Bosch Gmbh | Steuereinrichtung und Verfahren zur Antriebsschlupfregelung für ein elektrisches Antriebssystem |
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- 2014-02-27 DE DE102014203565.1A patent/DE102014203565A1/de active Pending
- 2014-12-22 EP EP14821177.4A patent/EP3110651B1/de active Active
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KR102326629B1 (ko) | 2021-11-17 |
DE102014203565A1 (de) | 2015-08-27 |
JP6272495B2 (ja) | 2018-01-31 |
JP2017509301A (ja) | 2017-03-30 |
CN106029431A (zh) | 2016-10-12 |
KR20160127743A (ko) | 2016-11-04 |
US10322648B2 (en) | 2019-06-18 |
WO2015128032A1 (de) | 2015-09-03 |
CN106029431B (zh) | 2018-11-06 |
EP3110651B1 (de) | 2022-11-09 |
US20170066345A1 (en) | 2017-03-09 |
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